County Line Branch
| County Line Branch | |
|---|---|
County Line Branch in Northumberland County
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| Basin features | |
| Main source | Muncy Hills in Anthony Township, Montour County, Pennsylvania/Lewis Township, Northumberland County, Pennsylvania |
| River mouth | West Branch Chillisquaque Creek in Anthony Township, Montour County, Pennsylvania 518 ft (158 m) 41°04′46″N 76°41′10″W / 41.0794°N 76.6861°WCoordinates: 41°04′46″N 76°41′10″W / 41.0794°N 76.6861°W |
| Progression | West Branch Chillisquaque Creek → Chillisquaque Creek → West Branch Susquehanna River → Susquehanna River → Chesapeake Bay |
| Basin size | 8.97 sq mi (23.2 km2) |
| Tributaries |
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| Physical characteristics | |
| Length | 8.9 mi (14.3 km) |
County Line Branch (also known as the County Line Branch of Chillisquaque Creek) is a tributary of West Branch Chillisquaque Creek in Northumberland County and Montour County, in Pennsylvania, in the United States. It is approximately 8.9 miles (14.3 km) long and flows through Lewis Township in Northumberland County and Anthony and Limestone Townships in Montour County. The stream's watershed has an area of 8.97 square miles. Its tributaries include Beaver Run and McKee Run.
The main rock formations in the watershed of County Line Branch are the Hamilton Group, the Onondaga and Old Port Formation, the Trimmers Rock Formation, and the Keyser and Tonoloway Formation. The soil series in the watershed include the Chenango-Pope-Holly series, the Berks-Weikert-Beddington series, the Hagerstown-Edom-Washington series, and the Watson-Berks-Alvira series. Industries in the watershed include agriculture and timbering. The Mountour County Natural Heritage Inventory lists the headwaters of County Line Branch as a "locally significant" site.
County Line Branch begins near the border between Anthony Township, Montour County and Lewis Township, Northumberland County, near the northern borders of both townships. The headwaters are in the Muncy Hills. The stream flows south for several miles with few turns, following the Northumberland/Montour County line. Eventually it makes a sharp turn southeast and leaves the county line. Upon leaving the county line, the stream begins flowing roughly parallel to the border between Anthony Township and Limestone Township, Montour County. During this stretch, the stream crosses Pennsylvania Route 44 and Pennsylvania Route 54 and at the southern edge of the stretch, it receives the tributary Beaver Run. It then turns northeast into Anthony Township, where it picks up the tributary McKee Run. The stream then turns southeast and reaches its confluence with West Branch Chillisquaque Creek at the southern edge of Anthony Township.
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